Rolex is releasing several watches at this year's Baselworld, but perhaps the most impressive of all is the Sea-Dweller Deepsea. Like its name indicates, this watch is breaking boundaries in water resistance. With the development of a new Ringlock system, a new case architecture developed by Rolex, comes a watch capable of withstanding water pressure up to an astounding 3,900 meters.

The ability to withstand such extreme depth is made possible in part by a high performance ring made of nitrogen alloyed stainless steel. In addition the sapphire crystal on the Deepsea is substantially thicker than that of Rolex's other Oyster models. The movement is a caliber 3135 and it has a 48 hour power reserve. An adjustable steel bracelet is equipped with a double extension system which is ideal for wearing over dive suits. Its new Glidelock clasp is adjustable up to 18mm by increments of 1.8mm.

Rolex has reworked its Oyster Perpetual Submariner Date and changed its reference number to 116610. While the case of the watch remains 40mm in diameter the profile is noticeably squarer and has thicker lugs. Also changed is the graduated unidirectional bezel, which now lacks the anodized black aluminum insert, replaced by the Cerachrom bezel, manufactured from a special ceramic material that Rolex has developed in-house. Chosen for its immunity to UV damage and saltwater corrosion and its being being extremely resistant to scratches.

The dial has enlarged luminous hands and hour markers treated with Chromalight for easier readability, this material has a distinctive blue glow which is more visible to the human eye even in underwater conditions.

Rolex has introduced its Oyster Perpetual Datejust Ladies collection of watches. Beautiful and delicate, these new additions to the datejust line have a great variety of dials, bezels and materials to choose from. The floral motif dials are particularly beautiful set against a dark rhodium background. Each dial has a stunning gem-set Roman numeral hour marker located at 6 o’clock. Available with either a fluted bezel or a beautiful domed bezel set with 24 or 46 round diamonds.

The first version of the Oyster Perpetual Datejust Lady watch is reference 178341 / 72161, has a 31mm Everose Rolesor case and a domed bezel with a unique setting of 24 sparkling diamonds. The untraditional setting playfully places round-cut diamonds around the domed everose bezel. Like all Rolex watches the dial is protected by a sapphire crystal treated with an anti-glare coating. Dials are available in chocolate, purple, pink, and white mother-of-pearl.

Powered by the self-winding movement, calibre 2235 which incorporates a perpetual rotor and allows for hours, minutes and seconds, and date function with instantaneous change and rapid setting. The watch has an Oyster Everose Rolesor bracelet with an Oyster clasp with the Easylink comfort extension link. The timepiece is water-resistant to 100 meters.

The second version of Rolex's new ladies watch is the reference 178383 / 72163. This version has a 31 mm yellow Rolesor case with a tradional diamond set bezel which contains 46 round-cut diamonds. Again, this model is protected by a sapphire crystal with an anti-glare coating. The dials is available in silver, olive, and white mother of pearl - each with a gem-set Roman numeral at 6 o’clock. The champagne version has an embellished tone-on-tone floral pattern and does not have diamonds but rather an Arabic numeral at 6 o’clock. Powered by the self-winding movement, calibre 2235 which incorporates a perpetual rotor and allows for hours, minutes and seconds, and date function with instantaneous change and rapid setting. The watch has yellow Rolesor bracelet bracelet with an Oyster clasp with the Easylink comfort extension link. The timepiece is water-resistant to 100 meters.

The third version of the Oyster Perpetual Datejust Lady watch is the reference 178274 / 63160. With a 31 mm white Rolesor and a fluted bezel. This model is protected by a sapphire crystal with an anti-glare coating. The dial is available in dark rhodium, bronze, purple, and white mother of pearl - each with a gem-set Roman numeral at 6 o’clock. There is also a mother of pearl version that has Maxi Roman numeral at 6 o'clock and a floral motif. Powered by the self-winding movement, calibre 2235 which incorporates a perpetual rotor and allows for hours, minutes and seconds, and date function with instantaneous change and rapid setting. The watch has a stainless steel bracelet and crown clasp. The timepiece is water-resistant to 100 meters.

Rolex's original Explorer timepiece has now been joined by a larger 39mm version. Though only a 3mm difference its a huge step for the watch after only being available at 36mm for decades. Perhaps following the trend of larger and larger case sizes for luxury watches, this may be a smart move for the brand and could bring back some potential customers who are looking for a more visually impressive timepiece.

The 39mm Rolex Explorer has a case and bracelet crafted from 904L stainless steel and still features the classic smooth polished bezel. The black dial is protected by a flat sapphire crystal with slightly raised edge. The placement of the Explorer name has been moved on the larger version to sit above the Superlative Chronometer Officially Certified writing at the bottom of the dial. The new Explorer is powered by a mechanical movement Caliber 3132 designed and manufactured by Rolex. The movement beats at 28,800 vibrations per hour, and has a power reserve of up to 48 hours. The Rolex Explorer 39mm watch is Water resistance to 100 meters.